diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index 0df60fde679..d347730ee0b 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -168,7 +168,7 @@ unsigned TargetData::getIndexedOffset(const Type *ptrTy,
       // Update Ty to refer to current element
       Ty = STy->getElementTypes()[FieldNo];
 
-    } else if (const ArrayType *ATy = dyn_cast<const ArrayType>(Ty)) {
+    } else if (isa<const ArrayType>(Ty)) {
       assert(0 && "Loading from arrays not implemented yet!");
     } else {
       assert(0 && "Indexing type that is not struct or array?");